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HD 100440


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Rotational Velocities of Late-Type Stars
A calibration based on the results of Gray has been used to determineprojected rotational velocities for 133 bright stars with spectral typesof F, G, or K, most of which appear in {\it The Bright Star Catalogue}.The vast majority have {\it v} sin {\it i} $\leq$ 10 km s$^{-1}$ and,thus, are slow rotators. With the new calibration, projected rotationalvelocities have been determined for a sample of 111 late-type stars,most of which are chromospherically active. Some of the stars have hadtheir rotational velocities measured for the first time. (SECTION:Stars)

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观测天体数据

星座:巨爵座
右阿森松:11h33m20.89s
赤纬:-23°08'13.0"
视星:8.543
距离:800 天文距离
右阿森松适当运动:-5
赤纬适当运动:17.6
B-T magnitude:10.477
V-T magnitude:8.703

目录:
适当名称   (Edit)
HD 1989HD 100440
TYCHO-2 2000TYC 6651-93-1
USNO-A2.0USNO-A2 0600-14229918
HIPHIP 56372

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